Stencil-duplicating apparatus.



A. B. DICK.

STENCIL DUPLIOATING APPARATUS.

APPLICATION FILED FEB. 19, 1909.

2 SHEETS-SHEET 1.

Patented Jan.

INVENTOR A Y B A. B. DICK. STENCIL DUPLIUATING APPARATUS.

APPLIOATION FILED 213.19, 1909.

945,264; Patented Jan. 4, 1910.

2 SHBBTBSHEET 2.

e m b s UNITED STATES PATENT OFFICE.

ALBERT 1B. DICK, OF LAKE FOREST, ILLINOIS, ASSIGNOR-TO A. B. DICKCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STENCIL-DUPLICATING APPARATUS.

Specification of Letters Patent.

Patented Jan. 4, 1910.

Application filed February 19, 1909. Serial No. 478,855.

To all whom it may concern:

Be it known that I, ALBERT B. DICK, a citizen, of the United States,residing at Lake Forest, in the county of Lake and State of Illinois,have invented certain new and useful Improvements in Stencil-DuplicatingApparatus, (Case 13,) of which the following is a specification.

The invention relates particularly to that type of stencil-duplicatingmachines in which is employed a drum, having rotary or oscillatorymovement, provided over part or all of its periphery with a foraminatedstencil-carrier, outside which a waxed stencilsheet is secured inposition and to the interior of which the ink is supplied, such ink, onpassing through said stencil'carrier and through the interstices in saidstencil-sheet, being deposited upon impression sheets pass ing betweenthe periphery of said drum and another member, such as an underlyingpressure-roller.

Duplicating apparatus of this type as heretofore employed has beenprovided with ink by means of a brush, manually operated, to convey theink to and distribute it over the inner surface of the stencil-carrier.

One of the objects of the present invention is to provide, chiefly forduplicating apparatus of this type, means for carrying the ink withinthe stencil-carrying drum, for depositing it upon the carrier of saiddrum, and for distributing it upon said carrier, either over the entirearea thereof or at such portions as may be desired.

The invention is illustrated in the accompanying drawings, in whichFigure l is a central longitudinal section of a duplicating machine ofthe rotary type, showing my improvement (in elevation) applied thereto;Fig. 2 is a central transverse section through the duplicator-drum,showing the inking apparatus herein to be described, partly in sectionand partly in elevation; Fig. 3 is a detail view illustrating the inkingapparatus in inoperative position; Fig. 4tis a section on the line 4i4;Fig. 2 and Fi 5 is an inverted plan view, showing one of the valvesillustrated in Figs. 2 and 4.

Referring to these drawings, there are here illustrated the mainframe-members having upwardly extending arms A, A, in which are carriedstubs-shafts a, a, supporting the drum, which comprises the heads a aconnected by tie-bars a a, and having the stencil-carrier a offoraminated material, and ink-pad a over which the waxed stencilsheet issecured in any suitable manner. Underlying the stencil-carrying drum, isthe pressure-roller B mounted in hinged springpressed arms B andcontrolled by throw-01f mechanism including shaft 1) and eccentrics 6.These parts need not be further described in detail, since they form nopart of the present invention.

C designates the ink-container, here shown as tubular in form, althoughobviously it may be of any suitable design. It s supported at one end bya bearing 0 formed therein, which receives the end of the stubshaft a,and at the other end by means of a pin a journaled in the stub-shaft a.The container G, having filling-port c, is here shown as provided with amember of handoperated valves 1) extending through it, each in a housingd having therein a coil-spring d surrounding the valve-stem (Z connectedat its upper end with finger-piece d. Each of the valve-stems (Z isprovided at its, lower end with a ball-and-socket joint d, whereby it isconnected to a double valve-head d coacting with ports d, theball-and-socket joint assuring tight closure of said ports, when theparts are in the position in which they are illustrated in Figs. 2 and4. The valve-heads are shown as arranged within a downwardly-dependinghollow extension E of the container casing, and, to preventdisarrangement, may be provided with ears 6, 6. There may, of course, beany number of valves and ports for the egress of the ink.

F designates an inkdistributing device, here shown in the form of aroller carried at its ends in arms 7' pivotally mounted at f on adownwardly-projecting integral portion e of the container casing. Withone or both of said arms, is associated a spring exerting outwardpressure upon said roller F. In the present case, I have shown such aspring 7' at one end of the roller, and at the other end a catch forlocking said roller in inoperative position, this comprising the arm 7"having a curved end adapted to coact with the shank of the screw 7'"carrying the stencil-securing clamp or bail '1he arm f is mounted uponthe pivot f and connected with a spring-arm f havingfingerpiece 7", saidspring-arm having a notch coacting with one or the other of'two pins fThe interior of the drum is provided with moved inward toward the axisof the drum,

and the arm brought into coaction with the screw 7. In this position,the inking apparatus and the drum will move together. Upon moving thefinger-piece f and arm 7 into contact with the pin i the arm f isreleased from the screw 7, thereby again permitting the inking apparatusand the drum to move relatively to each other.

The inking apparatus and the drum may be moved relatively to each otherfor the distribution of the ink in any suitable manner. Thus,particularly where, as in the present case, but a portion of theperiphery of the drum is covered by the stencil-carrier and stencilsheet, said container may be grasped by the hand and oscillated so as tobring the roller F into contact with the stencil-carrier or any partthereof. Or, if desired, the inking apparatus may be locked in a fixedposition and the drum partially rotated, back and forth, for the samepurpose. In the drawings, I have shown a lock Ur secured by means ofslot 9 and screw 9 to the rearward end of the ink-container. The upperend of said lock is provided with a slot which receives the stub-shafta, which does not rotate with the drum but is immovable relativelythereto. Said stub-shaft is provided with a notch, and with this coactsa lug g formed upon the lock Gr. \Vhen,

therefore, the lock is in the position in which it is illustrated inFig. 1, the ink-container is immovable relatively to the drum, in whichcase, after ink has been deposited either upon the roller F or inadvance of said roller, the drum may be partially rotated, to and fro,whereupon said roller will be brought into contact with the carrier asabove described. The lock G is here shown as provided with a downwardextension g making contact with an appurtenance of the roller (in thisparticular case, a portion of the spring F), to assure contact of theperiphery of said roller with the internal face of the stencil-carrier.

WVhen the roller F rides up on the shoulder 7, the lock G is movedupwardly and the lug 9 released from its coacting slot in the stub-shafta, thereby permitting the inkcontaining and -distributing mechanism tomove with the drum.

Having now described my invention, what I claim as new therein anddesire to secure by Letters Patent. is as follows:

1. In duplicating apparatus, the combination with a stencil-carryingdrum, of a pivoted ink-container within said drum and having its majoraxis in the longitude thereof, and an ink-distributer Within the drummovable independently of said container into and out of engagement withthe interior surface of the drum, substantially as set forth.

2. In duplicating apparatus, the combination of a stencil-carrying drum,an ink-container pivotally mounted within the drum and having its majoraxis in the longitude thereof, an ink-distributer within the drummovable independently of said container into and out of engagement withthe interior surface of the drum, and means for locking the distributerin inoperative position out of engagement with the drum, substantiallyas set forth.

3. In duplicating apparatus, the combination of a stencil-carrying drum,an ink-container within the drum, an ink-distributer within the drummovable independently of said container into and out of engagement withthe interior surface of the drum, a spring for pressing the distributerinto contact with the drum, and means for locking the distributer ininoperative position out of engagement with the interior surface of thedrum, substantially as set forth.

l. In duplicating apparatus, the combination of a stencil-carrying drum,an ink-container pivotally mounted within the drum and having its majoraxis in the longitude thereof, an ink-distributer within the drummovable independently of said container into and out of engagement withthe interior surface of the drum, a spring for pressing the distributerinto contact with the interior surface of the drum, and means forlocking the distributer in inoperative position out. of engagement withthe interior surface of the drum, substantially as set forth.

5. In duplicating apparatus, the combination of a drum, an ink-containerwithin the drum, an ink-distributer within the drum, and a pivotalsupport for the container and distributer permitting movement thereofcircumferentially of the drum, said distributer being movableindependently of the container into and out of engagement with theinterior surface of the drum, substantially as set forth.

6. In duplicating apparatus, the combination of a drum, an ink-containerwithin the drum, an ink-distributer within the drum, a pivotal supportfor the container and distributer permitting movement thereofcircuinferentially of the drum, said distributer being movableindependently of the container into and out of engagement with theinterior surface of the drum, and a spring for pressing the distributerinto engagement with the interior surface of the drum, substantially asset forth. V H

7. In duplicating apparatus, the combination of a drum, anink-container'within the drum, an ink-distributer within the drum, apivotal support for the container and distributer permitting movementthereof cir cumferentially of the drum, said distributer being movableindependently of the container into and out of engagement with theinterior surface of the drum, and means for locking the distributer ininoperative position out of engagement with the interior surface of thedrum, substantially as set forth.

8. In duplicating apparatus, the combination of a drum, an ink-containerwithin the drum, an ink-distributer within the drum, a pivotal supportfor the container and distributer permitting movement thereofcircumferentially of the drum, said distributer being movableindependently of the container into and out of engagement with theinterior surface of the drum, a spring for pressing the distributer intoengagement with the drum, and means for locking the distributer ininoperative position, substantially as set forth.

9. In duplicating apparatus, the combination of a drum, an ink-containerpivotally mounted therein, means for detachably locking the containeragainst. rotational movement, and an ink-distributer mounted within thedrum and movable into and out of engagement with the interior surface ofthe drum, substantially as set forth.

10. In duplicating apparatus, the combination of a drum, anink-container pivotally mounted therein, means for detachably lockingthe container against rotational movement, an ink-distributer mountedwithin the drum and movable independently of said container, and aspring for pressing the distributer into contact with the interior ofthe drum, substantially as set forth.

11. In duplicating apparatus, the combination of a drum, anink-container pivotally mounted therein, means for detachably lockingthe container against rotational movement, an ink-distributer mountedwithin the drum and movable independently of said container, a springfor pressing the distributer into contact with the interior of the drum,and a locking means for locking the distributer in inoperative position,substantially as set forth.

12. In duplicating apparatus, the combination of a stencil-carryingdrum, an inkcontainer within said drum, a shaft on which said containeris pivotally mounted permitting it to be rocked relatively to the drum,an ink-distributer within the drum, means for supporting saiddistributer permitting movement thereof into and out of contact with theinterior surface of the drum, and a spring for pressing the distributerinto contact with the drum, substantially as set forth.

13. In duplicating apparatus, the combination of a stencil-carryingdrum, an inkcontainer within said drum, a shaft on which said containeris pivotally mounted permitting-it to be rocked relatively to the drum,an ink-distributer within the drum, means for supporting saiddistributer permitting movement thereof into and out of contact with theinterior surface of the drum, a spring for pressing the distributer intocontact with the drum, and means for locking said container againstrotational movement relatively to the drum or releasing it to permitsuch movement at will, substantially as set forth.

14. I11 duplicating apparatus, the combina tion of a stencil-carryingdrum, an ink-container, an ink-distributer, a single means for pivotallysupporting the distributer and the container within the drum permittingrotational movement thereof relatively to the drum, said roller beingmovable into and out of contact with the interior surface of the drum,and a spring for pressing the distributer into contact with the drum,substantially as set forth.

15. In duplicating apparatus, the combination of a stencil-carryingdrum, an inkcontainer, an ink-distributer, a single means for pivotallysupporting the distributer and the container within the drum permittingrotational movement thereof relatively to the drum, said roller beingmovable into and out of contact with the interior surface of the drum, aspring for pressing the distributer into contact with the drum, andmeans for locking said container and said distributer against rotationalmovement relatively to the drum 01' releasing them at will,substantially as set forth.

This specification signed and witnessed this 9th day of February, 1909.

ALBERT B. DICK;

\Vitnesses:

S. O. EnMoNos, D. J. EnMoNDs.

